The Octopus card is a reusable contactless stored value smart card for making electronic payments in online or offline systems in Hong Kong. Launched in September 1997 to collect fares for the territory's mass transit system, the Octopus card system became the world's second contactless smart card system, after the Korean Upass, and has since grown into a widely used payment system for all public transport in Hong Kong. Octopus's success has led to the development of the Navigo card in Paris, ...
